Patient-Specific Knee Alignment Guide And Associated Method

Active Publication Date: 2014-10-30
BIOMET MFG CORP
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Misalignment can cause increased wear of the impla

Method used

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  • Patient-Specific Knee Alignment Guide And Associated Method
  • Patient-Specific Knee Alignment Guide And Associated Method
  • Patient-Specific Knee Alignment Guide And Associated Method

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Example

[0041]The following description is merely exemplary in nature and is in no way intended to limit the scope of the present teachings, applications, or uses. For example, although the present teachings are illustrated for alignment guides in knee surgery, the present teachings can be used for other guides, templates, jigs, drills, rasps or other instruments used in various orthopedic procedures.

[0042]The present teachings provide a method for preparing patient-specific alignment guides for use in orthopedic surgery for a joint, such as, for example, the knee joint. Conventional, not patient-specific, prosthesis components available in different sizes can be used with the alignment guides, although patient-specific femoral and tibial prosthesis components prepared with computer-assisted image methods can also be used. Computer modeling for obtaining three dimensional images of the patient's anatomy, such as a patient's joint, for example, the patient-specific prosthesis components, whe...

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Abstract

A method of preparing a knee joint for a prosthesis in a patient includes mating a patient-specific three-dimensional curved inner surface of a femoral alignment guide onto a corresponding three-dimensional femoral joint surface of the patient. The patient-specific three-dimensional curved inner surface is preoperatively configured from medical scans of the knee joint of the patient. First and second holes are drilled into an anterior portion of the femoral joint surface through corresponding first and second guiding apertures of the femoral alignment guide.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is continuation-in-part of U.S. patent application Ser. No. 13 / 800,334 filed on Mar. 13, 2013, which is a divisional of U.S. patent application Ser. No. 13 / 303,546 filed on Nov. 23, 2011, now U.S. Pat. No. 8,398,646 issued on Mar. 19, 2013, which is a continuation of U.S. patent application Ser. No. 11 / 756,057 filed on May 31, 2007, which is now U.S. Pat. No. 8,092,465 issued on Jan. 10, 2012, which claims the benefit of U.S. Provisional Application No. 60 / 812,694 filed on Jun. 9, 2006. The disclosures of the above applications are incorporated herein by reference.INTRODUCTION[0002]Proper alignment of prosthetic components in knee arthroscopy is an important factor in the longevity and function of the implant. Misalignment can cause increased wear of the implant, patient discomfort, and functional limitation.[0003]Although various methods and devices are known for addressing the above problems, patient specific alignment ...

Claims

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Application Information

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IPC IPC(8): A61B17/17A61B19/00
CPCA61B19/50A61B17/1764A61B17/154A61B17/155A61B17/157A61B34/10A61B2034/108A61B17/56A61B2017/568
Inventor METZGER, ROBERTBEREND, KEITH R.BEREND, MICHAEL E.LOMBARDI, ADOLPH V.PERRY, LANCE D.SCHOENEFELD, RYAN J.
Owner BIOMET MFG CORP
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